what do you mean...
the phone is unlocked and will work with any service provider. at&t, cingular, t mobile, etc...
you can unlock any phoen to work on any service provider.
i cna unlock a nextel and use it for t mobile, or unlock a sidcekick 2 and use it on nextel. the phone is a tri band, 900mhz, 1800mhz, and somethign else. most run on the 1800mhz i think. the gsm, gprs, type thing
gsm i think it is.
anyway the os has nothing to do with the phoens capability to be used on a service provider.
the os is jsut the program the phone works.
basically a pda.
im jsut trying to upgrade the os.. which is possible. cause i have read about people doing it, i jsut dont know exactly how to go about it. its supposedly easy. also im mainly looking for the rom, iso, whatever to use.